Beamforming for rejection of co-channels interference in an OFDM system

Author

Khan, Md Rajibur Rahaman ; Tuzlukov, Vyacheslav

Author_Institution

Coll. of IT Eng., Kyungpook Nat. Univ., Daegu, South Korea

Volume

7

fYear

2010

fDate

16-18 Oct. 2010

Firstpage

3318

Lastpage

3322

Abstract

Orthogonal frequency-division multiplexing (OFDM) is one of the promising techniques for modern mobile wireless data systems. For OFDM systems with co-channel interference, adaptive beamformer can be used for interference suppression. This paper focuses on a key issue for adaptive beamformer algorithm. In this paper, we have proposed an adaptive beamformer algorithm that based on least square-constant modulus (LS-CM) property of the OFDM signals. The proposed beamformer can effectively suppress co-channel interference. Finally, simulation results confirm the efficacy of the proposed beamforming algorithm for OFDM systems investigated in the present paper.

Keywords

OFDM modulation; array signal processing; cochannel interference; interference suppression; mobile radio; LS-CM property; OFDM system; adaptive beamformer algorithm; cochannel interference rejection; interference suppression; least square-constant modulus; modern mobile wireless data systems; orthogonal frequency-division multiplexing; Array signal processing; Arrays; Delay effects; Interference; OFDM; Receivers; Wireless communication; OFDM; adaptive beamformer; co-channel interference;

fLanguage

English

Publisher

ieee

Conference_Titel

Image and Signal Processing (CISP), 2010 3rd International Congress on

Conference_Location

Yantai

Print_ISBN

978-1-4244-6513-2

Type

conf

DOI

10.1109/CISP.2010.5647584

Filename

5647584